人教版英語八下unit8haveyoureadtreasuresectiona-2課件(編輯修改稿)
2025-01-13 16:07 本頁面
【文章內(nèi)容簡介】 個好學生。 比較： I have seen him this morning . 我上午看見他了。 (說話時在上午 ) I saw him this morning. 今天上午我遇見了他。 (說話時可能是下午或者晚上 ) It has been cold this winter. 今天冬天一直很冷。 (說話時仍是冬天 ) 4. 現(xiàn)在完成進行時和現(xiàn)在完成時 都可以表示 “從過去開始一直持續(xù)到現(xiàn)在”這一概念 , 有時 兩者可以互相代用 , 但前者多用于口語。 在含義上如著重表示動作的結果時 , 多用現(xiàn)在 完成時 。 如著重表示動作一直在進行 , 即動作 的延續(xù)性時 , 則多用現(xiàn)在完成進行時。 一般不能用于進行時的動詞也不能用于 現(xiàn)在完成時行時。 ? 現(xiàn)在完成時： 表示過去發(fā)生或已經(jīng)完成的某一動作對現(xiàn)在造成的影響或結果，或從過去開始一直延續(xù)到現(xiàn)在的動作或保存的狀態(tài)，強調(diào)的是現(xiàn)在的情況，不能和表示過去的時間狀語連用（如： in 1990，last Sunday 等）。 ? 一般過去時： 一般過去時只表示過去的動作或狀態(tài)，和現(xiàn)在不發(fā)生關系（即動作或狀態(tài)在現(xiàn)在已經(jīng)結束），它可以和表示過去的時間狀語連用。 現(xiàn)在完成時 與一般過去時的區(qū)別： have / has + V過去分詞 I have waited for him for many times. 我等他等了好幾次了。 I have been waiting for him for an hour. 我等他等了一小時。 He has drunk six cups of coffee. 他喝了六杯咖啡。 He has been drinking coffee. 他一直在喝咖啡。 改寫句子 father came back from the bookshop just now. My father ______ just ________ ______ the book shop. began to learn Chinese in 2021. He _____ _______ Chinese since 2021. film began two minutes ago. The film _____ ______ ______ since two minutes ago. has had the motorbike for two years. It’s two years ______he ________ the motorbike. He ________ the motorbike two years ______. Two years ______ ______ since he ______ the motor bike. has returned from has learned has been on since bought bought ago has passed bought1. A: Would you like something to drink? B: No, thanks. _______________________ (just/drink some tea) 2. A: I heard you lost your key. __________________? (find) B: No, not yet. 3. A: Do you know when Tom is leaving? B:___________________ . (already/leave) 4a. Use the words in brackets to plete the conversations. I’ve just drunk some tea Have you found it He has already left A: When _________________ ? (leave) B: This morning. 4. A: Is your sister going to the movies with us tonight? B: No. _________________________ . (already
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